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What are QR Codes?

QR codes (QR for Quick Response) are 2D codes which contain information that can be read by a QR code reader. Readers can be downloaded to mobile devices with a camera and web capabilities. QR codes are often used to link the user to a web address, but can also contain phone numbers to make a phone call or send a SMS text message, or enter up to 250 characters of text on to your mobile device.

How is a QR code made?

A QR code is made by entering the target web address, phone number, or text into a QR Code generator. Our favorite is the Kaywa generator. This site allows the user to easily choose the content type and the desired size of the code. Along with the actual code image, a permalink and html code are also generated for each code. The Google URL shortener service also generates a QR code, which can be tracked when the code is created while logged into a Google account.

How do I get a QR reader for my mobile device?

The Apple App Store, Google Play Store, and Amazon App Store all have a variety of free and low-cost QR Code reader apps.

You could also take a look at the website Mobile-Barcodes.com. This site lists instructions for download, which phones are compatible with each reader, as well as a Quick Find Reader option that allows the user to narrow options by phone manufacturer and model.

Where can I find more information on QR codes?

The QR Code is a registered trademark of Denso Wave Incorporated. See their website for more technical information about the codes, and an interesting FAQ section.

Mobile-Barcodes: This site provides a useful explanation of how QR codes work, as well as a bit of history behind the codes.